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Diffstat (limited to '3rdparty/des-4.04b/asm/desboth.pl')
-rw-r--r--3rdparty/des-4.04b/asm/desboth.pl79
1 files changed, 79 insertions, 0 deletions
diff --git a/3rdparty/des-4.04b/asm/desboth.pl b/3rdparty/des-4.04b/asm/desboth.pl
new file mode 100644
index 0000000..288984d
--- /dev/null
+++ b/3rdparty/des-4.04b/asm/desboth.pl
@@ -0,0 +1,79 @@
+#!/usr/local/bin/perl
+
+$L="edi";
+$R="esi";
+
+sub des_encrypt3
+ {
+ local($name,$enc)=@_;
+
+ &function_begin_B($name,"");
+ &push("ebx");
+ &mov("ebx",&wparam(0));
+
+ &push("ebp");
+ &push("esi");
+
+ &push("edi");
+
+ &comment("");
+ &comment("Load the data words");
+ &mov($L,&DWP(0,"ebx","",0));
+ &mov($R,&DWP(4,"ebx","",0));
+ &stack_push(3);
+
+ &comment("");
+ &comment("IP");
+ &IP_new($L,$R,"edx",0);
+
+ # put them back
+
+ if ($enc)
+ {
+ &mov(&DWP(4,"ebx","",0),$R);
+ &mov("eax",&wparam(1));
+ &mov(&DWP(0,"ebx","",0),"edx");
+ &mov("edi",&wparam(2));
+ &mov("esi",&wparam(3));
+ }
+ else
+ {
+ &mov(&DWP(4,"ebx","",0),$R);
+ &mov("esi",&wparam(1));
+ &mov(&DWP(0,"ebx","",0),"edx");
+ &mov("edi",&wparam(2));
+ &mov("eax",&wparam(3));
+ }
+ &mov(&swtmp(2), (($enc)?"1":"0"));
+ &mov(&swtmp(1), "eax");
+ &mov(&swtmp(0), "ebx");
+ &call("des_encrypt2");
+ &mov(&swtmp(2), (($enc)?"0":"1"));
+ &mov(&swtmp(1), "edi");
+ &mov(&swtmp(0), "ebx");
+ &call("des_encrypt2");
+ &mov(&swtmp(2), (($enc)?"1":"0"));
+ &mov(&swtmp(1), "esi");
+ &mov(&swtmp(0), "ebx");
+ &call("des_encrypt2");
+
+ &stack_pop(3);
+ &mov($L,&DWP(0,"ebx","",0));
+ &mov($R,&DWP(4,"ebx","",0));
+
+ &comment("");
+ &comment("FP");
+ &FP_new($L,$R,"eax",0);
+
+ &mov(&DWP(0,"ebx","",0),"eax");
+ &mov(&DWP(4,"ebx","",0),$R);
+
+ &pop("edi");
+ &pop("esi");
+ &pop("ebp");
+ &pop("ebx");
+ &ret();
+ &function_end_B($name);
+ }
+
+